Linus Martin Tommy Svenning (born 13 April 1990) is a Swedish singer and songwriter who participated in Melodifestivalen 2014, the selection process for picking the Swedish entry to the Eurovision Son
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4388f30d299febbafa21226b62562cb66d7c959f358911113b6f246cc11828. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcfc868f-55a6-4b77-9a95-ec72cef0ed03.json and https://artists.proofprofile.net/proofs/artist/bcfc868f-55a6-4b77-9a95-ec72cef0ed03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b04519c97c9eefbd88891528c1987c29b7dd76ceccd31f53551cf6dc5de8ff8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d7e9d26d58056a7a36d8765d0b49c9e4688d8d0391afe27a0de01ccc774fc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71800185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7b266faf20d0c6ca2962954d1d8ea198f1926f617a323f36a3e15cad17629e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd218ad9cf8b535fcbd261d6da5aba763ae037f86b7ec2ce00fd27f97f494e31. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71800186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b22be04cd0d91f4ba4c8fc610fb053d3db17db7bbe4df97a51ad2c9545f7d62. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a74805fff9aecaf3e2c1d6799a7a4a813cacafdb0273509db68506492c4aec4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71700705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae3464e88af0ec977c10c66b7e8ef3f511f9009e1a282aa7f13f3da955a2d58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42298f8ecd7210eecff34b2307b7b407f53ca576429c16a91a686a73efb22701. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEUM71700915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e6e5acc1c068b7733484ad6c6c79e7ecafef2c8d4ac3be389a1888a446bd2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2351561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd5702a4a0e73f3ea0afa31c0a7f7fbb21774a73e5f8a597e408c02e1afba9c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32306315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30cfc0ec0f757b4d0a3e01e0748ce39fbc0a611ea1cc7b248cf7d7ace2c5376. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb031820adbd0e05cae9b6ae28b6c6c3e373b6f1c693af1950b5434be4cb1fccf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32293818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8235e80e521f562dcc2563fd89f065926d0523d2f5d7e1d86059ab2899477cf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32204336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb2c2142a98be2b7961fc0f1b6ed2760103b45e28af06dccba62bb88710accb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22212070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a3ea20a050ec3dc319058793c8701c47e993047c370d5ec64510d69f23e5ab. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2294667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc1c9c832c467a5ae2b485ad1c56e7798de12dedef7baef4f9addd09c4e56b1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2036483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce54b8e6949200368f655b465093054a9d06d89db91307a9fed297e7716b79d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK2018293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1beaa160bddd1c78c3a82008d4a42e00fe8918077dfaf31c9d553d21b195e3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1954697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c0a63305aa9e8d8e98c0ef469c0b36f0e9a8839aeba3aa9a0f4ce78cdfe258. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1950276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee4fb5e8743ba4ab64e14c2418e861ab1dc4815aab0fb421a1a76594693faa8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK1947066.